山东崔家峪玻璃用石英砂岩矿床地质特征及成因

崔家峪石英砂岩矿床赋存于下寒武系李官组,矿体呈层状,厚度5. 2～15. 50 m;矿石中砂结构,分选性好;矿石w (SiO2) 高达98. 77 %～98. 98 % , w (Fe2O3) 仅0. 038 %～0. 045 % ,实属少见的超纯石英砂岩矿床。该矿床形成于温暖潮湿气候下的稳定大陆壳边缘滨海环境,石英直接来源于震旦系土门群砂岩,矿床是剥蚀2沉积多个旋回不断分选富集的结果。研究该矿床地质特征和成因具有地质和找矿指导意义。

贵阳市表层土壤中汞的环境地球化学基线及污染研究

以土壤环境地球化学研究为主线,在贵州省贵阳市8 046 km2研究区域中,将土壤重金属元素汞的空间分布规律与环境地球化学机理研究相结合,建立区域土壤环境地球化学基线,选用合适的判别指标判识自然作用过程与人类活动过程对土壤环境的影响,对487个样品的汞含量进行了统计分析.结果表明,贵阳市表层土壤中重金属元素汞的基线值为0.045 mg·kg^-1,样品中汞元素含量大于0.530 mg·kg^-1的样品可能遭受人为污染的影响.地质累积指数分析结果显示,贵阳市12%的表层土壤未受汞的污染,37%的表层土壤在无污染到中度污染之间,36%的中度污染,11%的表层土壤介于中度污染到强污染之间,2%的强污染,1%的介于强污染到极强污染之间.污染程度指数分析显示,贵阳市56.1%的表层土壤未受到汞的污染,汞的污染程度最大为45.87,总污染程度大于0（即受到污染）.

山东崔家峪玻璃用石英砂岩矿床简介及开发利用前景

崔家峪石英砂岩矿床矿石质量优，原矿SiO2 含量高达98.77%～98.94%，Fe2O3 含量仅0.038%～0.045%。石英颗粒分选性好，粒度分布0.1～0.5mm 占88.43%；矿石选矿工艺简单，主要通过强磁选，精砂化学成分SiO2 达到99.58%，Fe2O3 仅0.017％。该矿床为少见的优质玻璃用石英砂岩矿床，开发利用前景良好。

Avaliação do teor e produtividade de óleo em genótipos de girassol.

RESUMO: O presente trabalho teve como objetivo avaliar o teor e a produtividade de genótipos de girassol semeados em segunda safra no ano de 2014 em Campo Novo do Parecis ? MT, no campo experimental do Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso. O delineamento experimental utilizado foi o de blocos casualizados, com 16 tratamentos (16 genótipos) e quatro repetições. As parcelas experimentais foram constituídas de 4 linhas com 6,5 m de comprimento, com espaçamento entrelinhas de 0,45 m, contendo área de 11,7 m², totalizando uma área de 748 m². Foi utilizada a população de 45000 plantas por hectare. Os dados foram submetidos à análise de variância e ao teste Scott-Knott, a 5% de probabilidade. Os genótipos que se destacaram em relação à produtividade de aquênios foram o MG 360, AGUARÁ 06, MG 305, AGUARÁ 04, CF 101, SYN 045, GNZ NEON, HELIO 251 e SYN 3950HO. Para o teor de óleo nos aquênios e produtividade de óleo, o genótipo MG 360 apresentou o maior valor e se destacou em relação aos demais genótipos analisados. ABSTRACT: This study aimed to evaluate genotypes of sunflower seeded second harvest in the year 2014 in Campus Campo Novo do Parecis, in the experimental field of the Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso. The experimental design was a randomized block design with treatments 16 (16 genotypes) and four replications. The experimental plots consisted of four rows 6.5 m long with row spacing of 0.45 m, containing area of 11.7 m², totaling an area of 748 m². The population of 45000 plants per hectare is used. Data were subjected to analysis of variance and the Scott-Knott test at 5 % probability. The genotypes that stood out in relation to achenes productivity were MG 360, AGUARÁ 06, MG 305, AGUARÁ 04, CF 101, SYN 045, GNZ NEON, HELIO 251 and SYN 3950HO. For oil content and oil productivity, MG 360 genotype showed the highest value and stood out in relation to other genotypes.

Influência da densidade de semeadura nas características agronômicas de cultivares de girassol.

RESUMO: O presente trabalho teve como objetivo avaliar a influência de densidades de semeadura de genótipos de girassol em suas características agronômicas. O experimento foi realizado no campo experimental do IFMT, Campus Campo Novo do Parecis - MT, entre os meses de fevereiro e junho de 2015. O delineamento experimental utilizado foi de blocos casualizados, em esquema fatorial 5 x 5, sendo cinco genótipos de girassol AGUARÁ 04, GNZ NEON, HÉLIO 251, SYN 045 e SYN 3950HO) e cinco populações de plantas (30.000, 37.500, 45.000, 52.500 e 60.000 plantas ha-1), com 3 repetições. Foram analisadas as características altura de planta, diâmetro da haste, tamanho do capítulo, massa de mil aquênios e produtividade de aquênios. Os dados obtidos foram submetidos à análise de variância, seguido de teste Tukey para cultivares e análise de regressão para as diferentes populações de plantas (p<0,05). O genótipo SYN 045 apresentou a maior produtividade de aquênios, 1.708,90 kg ha-1 enquanto que a população de 60.150 plantas ha-1 foi a que possibilitou a maior produtividade de aquênios, 2.391,92 kg ha-1. ABSTRACT: This study aimed to evaluate the influence of sowing density of sunflower genotypes on their agronomic characteristics. The experiment was conducted in the experimental field of IFMT, Campus Campo Novo do Parecis - MT, between February and June 2015. The experimental design was randomized blocks in a factorial 5 x 5, five sunflower genotypes (AGUARÁ 04, GNZ NEON, HÉLIO 251, SYN 045 and SYN 3950HO) and five plant populations (30,000, 37,500, 45,000, 52,500 and 60,000 plants ha-1) with 3 repetitions. Plant height, stem diameter, chapter length, mass thousand achenes and achenes productivity were analyzed. The data were submitted to analysis of variance followed by Tukey test for cultivars and regres. -

Avaliação de genótipos de girassol (helianthus annuus l.) em Campo Novo Do Parecis - MT.

RESUMO: O presente trabalho teve como objetivo avaliar genótipos de girassol semeados em segunda safra no ano de 2014 em Campo Novo do Parecis ? MT, no campo experimental do Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso. O delineamento experimental utilizado foi o de blocos casualizados, com 16 tratamentos (16 genótipos) e quatro repetições. As parcelas experimentais foram constituídas de 4 linhas com 6,5 m de comprimento, com espaçamento entrelinhas de 0,45 m, contendo área de 11,7 m², totalizando uma área de 748m². Foi utilizada a população de 45000 plantas por hectare. Os dados foram submetidos à análise de variância e ao teste Scott-Knott, a 5% de probabilidade. Para a massa de mil aquênios, os genótipos que se destacaram foram BRS 323, MG 360 e M734 enquanto que as os mais produtivos foram os genótipos MG 360, AGUARÁ 06, MG 305, AGUARÁ 04, CF 101, SYN 045, GNZ NEON, HELIO 251 e SYN 3950HO. ABSTRACT: This study aimed to evaluate genotypes of sunflower seeded second harvest in the year 2014 in Campus Campo Novo do Parecis, in the experimental field of the Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso. The experimental design was a randomized block design with treatments 16 (16 genotypes) and four replications. The experimental plots consisted of four rows 6.5 m long with row spacing of 0.45 m, containing area of 11.7 m², totaling an area of 748 m². The population of 45000 plants per hectare is used. Data were subjected to analysis of variance and the Scott - Knott test at 5 % probability. For the mass of thousand achenes, genotypes that stood out were BRS 323, MG 360 and M734 while the most productive genotypes were the MG 360, AGUARÁ 06, MG 305, AGUARÁ 04, CF 101, SYN 045, GNZ NEON, HELIO 251 and SYN 3950HO.

Desempenho morfoagronômico de genótipos de girassol cultivados na Chapada do Araripe, Pernambuco.

RESUMO: Com o objetivo de avaliar o desempenho agronômico de genótipos de girassol nas condições edafoclimáticas do primeiro semestre de 2015 na Chapada do Araripe, instalou-se um experimento na Estação Experimental do Instituto Agronômico de Pernambuco (IPA), no município de Araripina, Estado de Pernambuco. O delineamento foi o de blocos ao acaso, com quatro repetições e 13 tratamentos, correspondendo aos genótipos de girassol: M734, NTC 90, BRS G43, BRS G44, BRS G45, BRS G46, SYN 065, HLA 2013, HLA 2014, HLA 2015, HLA 2016, HLA 2017 e SYN 045. Avaliaram-se as seguintes características: sobrevivência final, floração inicial, maturação fisiológica, altura média do capítulo, peso de 1000 aquênios, diâmetro médio dos capítulos, produção final de aquênios, curvatura do capítulo e plantas acamadas, quebradas e atacadas por pássaros. Os genótipos apresentaram diferenças morfoagronômicas quando cultivados no primeiro semestre em condições edafoclimáticas da região do Araripe, com exceção da variável sobrevivência. O genótipo NTC 90 alcançou o maior peso de aquênios. Todos os genótipos, exceto HLA 2015, apresentaram elevado rendimento de grãos. Os caracteres plantas acamadas, quebradas, atacadas por pássaros ou a curvatura do capítulo não foram relacionadas às diferentes cultivares. ABSTRACT: The study aimed to evaluate the agronomic performance of different sunflower genotypes in edaphoclimatic conditions of Araripe region in the first semester of 2015. The experiment was established at the Experimental Station of Instituto Agronômico de Pernambuco (IPA), Araripina, Pernambuco, Brazil. Experimental design was a randomized blocks with thirteen treatments, corresponding to the sunflower genotypes: M734, NTC 90, BRS G43, BRS G44, BRS G45, BRS G46, SYN 065, HLA 2013, HLA 2014, HLA 2015, HLA 2016, HLA 2017 e SYN 045, with four replicates. The following characteristics were evaluated: final survival, early flowering, physiological maturity, average plant height, weight of 1,000 seeds, average flower diameter, final seed production, flower head curvature, lodged, broken and damaged by birds plants. The genotypes showed morphoagronomic differences when grown in the first semester of 2015 on edaphoclimatic conditions of the Araripe region, except for the variable survival. The NTC 90 genotype achieved the highest weight of head flower. All genotypes, except HLA 2015 showed high grain yield. The characters lodged, broken and damaged plants by birds or curvature of the head flower were not related to the different cultivars.

Avaliação de genótipos de girassol em ambiente de sequeiro e irrigado no Distrito Federal.

RESUMO: O presente trabalho tem por objetivo caracterizar o comportamento de 16 genótipos de girassol em ambiente de sequeiro e ambiente irrigado do Cerrado do Distrito Federal visando aumentar disponibilidade de cultivares mais produtivas e adaptadas. Os ensaios foram conduzidos na área experimental da Embrapa Cerrados, Planaltina, DF. Os ensaios foram arranjados experimentalmente em blocos ao acaso, com quatro repetições. Os genótipos avaliados foram: CF 101, ADV 5504, BRS G42, BRS 323, HELIO 250, HELIO 251, SYN 045, SYN 3950HO, MG 305, MG 360, AGUARÁ 04, AGUARÁ 06, PARAÍSO 20, GNZ NEON, HLA 2012 e M734. Os caracteres avaliados foram rendimento estimado de grãos, tamanho do capítulo, peso de mil aquênios, altura de plantas, teor de óleo e dias para floração inicial. Houve diferenças significativas entre os genótipos para todas as características avaliadas. Dos 16 genótipos avaliados, os híbridos SYN 045 (3.786,2 kg ha-1) e MG 305 (4.987,2 kg ha-1) se sobressaíram quanto ao rendimento estimado de grãos. Quanto ao teor de óleo, os híbridos MG 306 (53,95%) e SYN 3950HO (49,49%) se destacaram. Foram identificados os genótipos mais promissores dentre os avaliados, podendo ser explorados em programas de melhoramento que visam o desenvolvimento de cultivares mais adaptadas.

Muscle function and body composition profile in adolescents withrestrictive anorexia nervosa: Does resistance training help?

The aim of this study was to analyze the effects of short-term resistance training on the body composition profile and muscle function in a group of Anorexia Nervosa restricting type (AN-R) patients. The sample consisted of AN-R female adolescents (12.8 ± 0.6 years) allocated into the control and intervention groups (n¼18 each). Body composition and relative strength were assessed at baseline, after 8 weeks and 4 weeks following the intervention. Body mass index (BMI) increased throughout the study (p = 0.011). Significant skeletal muscle mass (SMM) gains were found in the intervention group (p = 0.045, d = 0.6) that correlated to the change in BMI (r = 0.51, p < 0.031). Meanwhile, fat mass (FM) gains were significant in the control group (p = 0.047, d = 0.6) and correlated (r > 0.60) with change in BMI in both the groups. Significant relative strength increases (p < 0.001) were found in the intervention group and were sustained over time.

Neural Representations for Sensory-Motor Control, III: Learning a Body-Centered Representation of 3-D Target Position

A neural model is described of how the brain may autonomously learn a body-centered representation of 3-D target position by combining information about retinal target position, eye position, and head position in real time. Such a body-centered spatial representation enables accurate movement commands to the limbs to be generated despite changes in the spatial relationships between the eyes, head, body, and limbs through time. The model learns a vector representation--otherwise known as a parcellated distributed representation--of target vergence with respect to the two eyes, and of the horizontal and vertical spherical angles of the target with respect to a cyclopean egocenter. Such a vergence-spherical representation has been reported in the caudal midbrain and medulla of the frog, as well as in psychophysical movement studies in humans. A head-centered vergence-spherical representation of foveated target position can be generated by two stages of opponent processing that combine corollary discharges of outflow movement signals to the two eyes. Sums and differences of opponent signals define angular and vergence coordinates, respectively. The head-centered representation interacts with a binocular visual representation of non-foveated target position to learn a visuomotor representation of both foveated and non-foveated target position that is capable of commanding yoked eye movementes. This head-centered vector representation also interacts with representations of neck movement commands to learn a body-centered estimate of target position that is capable of commanding coordinated arm movements. Learning occurs during head movements made while gaze remains fixed on a foveated target. An initial estimate is stored and a VOR-mediated gating signal prevents the stored estimate from being reset during a gaze-maintaining head movement. As the head moves, new estimates arc compared with the stored estimate to compute difference vectors which act as error signals that drive the learning process, as well as control the on-line merging of multimodal information.

Mergers and Acquisitions in Vietnam’s Emerging Market Economy, 1990-2009

This paper is the first major and thorough study on the M&A activities in Vietnam’s emerging market economy, covering almost entirely the M&A history after the launch of Doi Moi. The surge in these activities since mid-2000s by no means incidentally coincides with the jump in FDI and FPI inflows into the nation. M&A industry in Vietnam has its socio-cultural traits that could help explain economic happenings, with anomalies and transitional characteristics, far better than even the most complete set of empirical data. Proceeds from sales of existing assets and firms have mainly flowed into the highly speculative industries of securities, banking, non-bank financials, portfolio investments and real estates. The impacts of M&A on Vietnam’s long-term prosperity are, thus, highly questionable. An observable high degree of volatility in the M&A processes would likely blow outthe high ex ante expectations by many speculators, when ex post realizations finally arrive. The effect of the past M&A evolution in Vietnam has been indecisively positive or negative, with significant presence of rent-seeking and likelihood of causing destructive entrepreneurship. From a socio-economic and cultural view, the degree of positive impacts it may result in for domestic entrepreneurship will perhaps be the single most important indicator.

Associations between Intake of Folate, Methionine, and Vitamins B-12, B-6 and Prostate Cancer Risk in American Veterans.

Prostate cancer (PC) is the second leading cause of cancer death in men. Recent reports suggest that excess of nutrients involved in the one-carbon metabolism pathway increases PC risk; however, empirical data are lacking. Veteran American men (272 controls and 144 PC cases) who attended the Durham Veteran American Medical Center between 2004-2009 were enrolled into a case-control study. Intake of folate, vitamin B12, B6, and methionine were measured using a food frequency questionnaire. Regression models were used to evaluate the association among one-carbon cycle nutrients, MTHFR genetic variants, and prostate cancer. Higher dietary methionine intake was associated with PC risk (OR = 2.1; 95%CI 1.1-3.9) The risk was most pronounced in men with Gleason sum <7 (OR = 2.75; 95%CI 1.32- 5.73). The association of higher methionine intake and PC risk was only apparent in men who carried at least one MTHFR A1298C allele (OR = 6.7; 95%CI = 1.6-27.8), compared to MTHFR A1298A noncarrier men (OR = 0.9; 95%CI = 0.24-3.92) (p-interaction = 0.045). There was no evidence for associations between B vitamins (folate, B12, and B6) and PC risk. Our results suggest that carrying the MTHFR A1298C variants modifies the association between high methionine intake and PC risk. Larger studies are required to validate these findings.

Variability of particulate matter concentrations along roads and motorways determined by a moving measurement unit

The spatial variability of aerosol number and mass along roads was determined in different regions (urban, rural and coastal-marine) of the Netherlands. A condensation particle counter (CPC) and an optical aerosol spectrometer (LAS-X) were installed in a van along with a global positioning system (GPS). Concentrations were measured with high-time resolutions while driving allowing investigations not possible with stationary equipment. In particular, this approach proves to be useful to identify those locations where numbers and mass attain high levels ('hot spots'). In general, concentrations of number and mass of particulate matter increase along with the degree of urbanisation, with number concentration being the more sensitive indicator. The lowest particle numbers and PM1-concentrations are encountered in a coastal and rural area: <5000cm-3 and 6μgm-3, respectively. The presence of sea-salt material along the North-Sea coast enhances PM>1-concentrations compared to inland levels. High-particle numbers are encountered on motorways correlating with traffic intensity; the largest average number concentration is measured on the ring motorway around Amsterdam: about 160000cm-3 (traffic intensity 100000vehday-1). Peak values occur in tunnels where numbers exceed 106cm-3. Enhanced PM1 levels (i.e. larger than 9μgm-3) exist on motorways, major traffic roads and in tunnels. The concentrations of PM>1 appear rather uniformly distributed (below 6μgm-3 for most observations). On the urban scale, (large) spatial variations in concentration can be explained by varying intensities of traffic and driving patterns. The highest particle numbers are measured while being in traffic congestions or when behind a heavy diesel-driven vehicle (up to 600×103cm-3). Relatively high numbers are observed during the passages of crossings and, at a decreasing rate, on main roads with much traffic, quiet streets and residential areas with limited traffic. The number concentration exhibits a larger variability than mass: the mass concentration on city roads with much traffic is 12% higher than in a residential area at the edge of the same city while the number of particles changes by a factor of two (due to the presence of the ultrafine particles (aerodynamic diameter <100nm). It is further indicated that people residing at some 100m downwind a major traffic source are exposed to (still) 40% more particles than those living in the urban background areas. © 2004 Elsevier Ltd. All rights reserved.

Adaptive stereotactic body radiation therapy planning for lung cancer.

PURPOSE: To investigate the dosimetric effects of adaptive planning on lung stereotactic body radiation therapy (SBRT). METHODS AND MATERIALS: Forty of 66 consecutive lung SBRT patients were selected for a retrospective adaptive planning study. CBCT images acquired at each fraction were used for treatment planning. Adaptive plans were created using the same planning parameters as the original CT-based plan, with the goal to achieve comparable comformality index (CI). For each patient, 2 cumulative plans, nonadaptive plan (PNON) and adaptive plan (PADP), were generated and compared for the following organs-at-risks (OARs): cord, esophagus, chest wall, and the lungs. Dosimetric comparison was performed between PNON and PADP for all 40 patients. Correlations were evaluated between changes in dosimetric metrics induced by adaptive planning and potential impacting factors, including tumor-to-OAR distances (dT-OAR), initial internal target volume (ITV1), ITV change (ΔITV), and effective ITV diameter change (ΔdITV). RESULTS: 34 (85%) patients showed ITV decrease and 6 (15%) patients showed ITV increase throughout the course of lung SBRT. Percentage ITV change ranged from -59.6% to 13.0%, with a mean (±SD) of -21.0% (±21.4%). On average of all patients, PADP resulted in significantly (P=0 to .045) lower values for all dosimetric metrics. ΔdITV/dT-OAR was found to correlate with changes in dose to 5 cc (ΔD5cc) of esophagus (r=0.61) and dose to 30 cc (ΔD30cc) of chest wall (r=0.81). Stronger correlations between ΔdITV/dT-OAR and ΔD30cc of chest wall were discovered for peripheral (r=0.81) and central (r=0.84) tumors, respectively. CONCLUSIONS: Dosimetric effects of adaptive lung SBRT planning depend upon target volume changes and tumor-to-OAR distances. Adaptive lung SBRT can potentially reduce dose to adjacent OARs if patients present large tumor volume shrinkage during the treatment.

SOLO AND CHAMBER CLARINET WORKS BY AMERICAN- BORN WOMEN COMPOSERS: 1990-2005

During the period of 1990-2005, American-born women composers have contributed significantly to the standard clarinet repertoire. Pioneering composers such as Joan Tower, Margaret Brouwer, and Libby Larsen have created staples for clarinet literature. Yet, there is very little scholarly research on women composers of clarinet music, most being concentrated on Joan Tower. Through my research, I have discovered over seventy-five works by more than fifty composers in the following genres: solo clarinet; clarinet and piano; clarinet and voice, with or without piano; and small chamber pieces for up to five players. This performance dissertation project consists of three recitals featuring solo and chamber works by nine living women composers, and program notes containing pertinent biographical and compositional information. My intent is to increase recognition women composers, both prominent and lesser known, who are writing high-quality, accessible clarinet literature. Each woman selected is making a full or partial living from the sales of her compositions, has received recognition through awards, commissions, grants, and frequent performances, and has composed works that are both performer and audience accessible. Recital 1: Trios for Clarinet, Violin, and Piano Commissioned by the Verdehr Trio and Composed by American-Born Women Composers. Composers: Jennifer Higdon, Joan Tower, Margaret Brouwer, and Libby Larsen. Recital II: Programmatic Clarinet Works by American-Born Women Composers. Composers: Andrea Clearfield, Stella Sung, and Karen Amrhein. Recital III: Works for Solo Clarinet, Clarinet and Piano, and Clarinet Concerto Genres by American-Born Women Composers. Composers: Persis Parshall Vehar, Jenni Brandon, Margaret Brouwer, and Libby Larsen.